package com.zhaoyue.study.netty.protobuf;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;

/**
 * Created with IntelliJ IDEA.
 * User: Administrator
 * Date: 2017/1/17
 * Time: 17:48
 * To change this template use File | Settings | File Templates.
 */
public class SubReqClient {

    public void connect(int port,String host) throws Exception{
        //配置客户端线程组
        EventLoopGroup group = new NioEventLoopGroup();
        try{
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(group).channel(NioSocketChannel.class)
                    .option(ChannelOption.TCP_NODELAY,true)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new ProtobufVarint32FrameDecoder());
                            ch.pipeline().addLast(new ProtobufDecoder(SubscribeRespProto.SubscribeResp.getDefaultInstance()));
                            ch.pipeline().addLast(new ProtobufVarint32LengthFieldPrepender());
                            ch.pipeline().addLast(new ProtobufEncoder());
                            ch.pipeline().addLast(new SubReqClientHandler());
                        }
                    });

            ChannelFuture f = bootstrap.connect(host,port).sync();
            f.channel().closeFuture().sync();
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            group.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception{
        new SubReqClient().connect(8080,"127.0.0.1");
    }
}
